From 2341e0b4d4eaafb83cd146f4e4608f607319fed8 Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@codecow.com>
Date: Mon, 3 Aug 2026 06:20:54 -0700
Subject: [PATCH] Treat constants as read-only.

---
 src/lib/constants.ts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/lib/constants.ts b/src/lib/constants.ts
index cb2664c..753d700 100644
--- a/src/lib/constants.ts
+++ b/src/lib/constants.ts
@@ -12,7 +12,7 @@ export const BURN_PUBLIC_KEY = '000000000000000000000000000000000000000000000000
 export const DIFFICULTY_RECEIVE = 0xfffffe0000000000n
 export const DIFFICULTY_SEND = 0xfffffff800000000n
 export const HARDENED_OFFSET = 0x80000000
-export const HEXCHAR = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F']
+export const HEXCHAR = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'] as const
 export const MAX_RAW = 0xFFFF_FFFF_FFFF_FFFF_FFFF_FFFF_FFFF_FFFFn
 export const MAX_SUPPLY = 133_248_297_920_938_463_463_374_607_431_768_211_455n
 export const NONCE_LENGTH = 24
@@ -34,9 +34,9 @@ export const UNITS: Record<string, number> = Object.freeze({
 	NANO: 30,
 	KNANO: 33,
 	MNANO: 36,
-})
+} as const)
 
-export const SCHEMA = {
+export const SCHEMA = Object.freeze({
 	account_info: {
 		fields: [
 			'frontier',
@@ -77,4 +77,4 @@ export const SCHEMA = {
 			'subtype',
 		],
 	},
-}
+} as const)
-- 
2.52.0